Nut-lock.



g. D. OU ONNOR.:

NUT LOOK. I APPLICATION FILED JULY 21, 1913.

1,099,?) Patented June 9,1914.

Witn esses A Inventor Attorneys uurrao STATES PATENT orFIcE.

' 'cnmsrornnn n; o'comron, or main, sourn" Imxoi'a. i

' nor-Loon.

Specification of Letters Patent. Patented Junk; 9, 1914. I

Application filed Ju1y21, 1913. Serial No. 780,297. v-

To all whom it may concern:

' Be it known that I, CHRISTOPHER D. OCoNNoR, a citizen of the United States, residing at Trojan, in the county of Law- 5 fence and State of South Dakota, have'in-' vented anew and useful Nut-Lock, of which the following is a specification.

The present invention app'ertains to nut locks, and aims to provide a novel and im- 1'0 proved device. of that character. v Y It is the object of the presentinvention to v provide a simple and inexpensive means for efiicientlyloc'king a nut upon a bolt.

It is also the ob'ect of thepresentinvention to provide a evice of the character indicated which shallnot materially 'weaken either the-nut or the bolt, and which shall ,permit the nut to be adjusted to various positions along the bolt.

With the foregoing and other objectsinview, which will be apparentas the descri "tion proceeds, the invention resides int c combination and arrangement of parts and thedetails'of, construction hereinafter de-f scribed and claimed, it being understood that changes inthe precise embodiment of the invention herein disclosedcan be made within the scope of what is claimed without departing from the spirit of the invention. 80 Theinvention has been illustrated in its preferred embodiments in the accompanying drawing, wherein Figure 1 is a slde elevation of a bolt and nut, constructed in accordance with the presproper. I

The improved nut 4 embodies the conical or enlarged body 5, the base of the conical body forming the back of the nut, as at 6, and the apex of the conical body 5 havinga relatively thin extension or tail 7 of hexa onal or octagonal contour or'cr'oss section.

T e tap throu h 'thebody 5 and tall 7 thereof, so that t e nut may be firmly threaded onto 5 the bolt 1; The tail or extension 7 of the for a distance slightly shorter than Hz of the nut! extends completely..

, .nut is provided with a spiral or helical series of transverse orl diametrical" openings 8 therethrough, the openings being extended i' through the various sides of the tail, and at various points along the tail. The several co openings or apertures S- are thus disposed angularly with respect to each other, and are I spaced longitudinally throughout the length X of the tail or extension 7 Thusyth axesmf the openings 8 lie indifferent plane'sa't right angles to t c axis of the bolt and none of the v axes of the said 0 enings intersect. i

A- cotter or 100 ing pin 9 is employed for maintaining the nut tin 'position on the bolt, in a manner'as will be presently described. The adjoinin openings ornpertures .8, through which the cotter pin 9 is adapted to be inserted, are spaced apart longitudinally 1 length of the slot or kerf 3, or it may said, conversely, that the slot '3 extends longitudinally for a 'distance slightly greater than the spaces between the respective longitudinally spaced 0 nings 8. As a result of this structure, wlifn-the nut 4 is threaded '30 onto the bolt. 1, one of .the openings 8 will always coincide or registerwith the slot 3 at the variousangular. positions of the nut upon the bolt. In thiss'pecific instance, the

openings 8 are disposed at arcs of sixty dou grees with respect to each other, so that the mam-tr be locked at longitudinal points of approximately one sixth of thetliread pitch apart. In this manner, a niccty of adjustment isattained, and as the nut is threaded 9Q inwardly, the successive openings or a rtures 8 will. be successively brought into registration or coiiperatioli with the slot 3." \Vhenever the nut is threaded sullicicnfly onto "the bolt, the cotter pin 9'may be in- '5 sorted through the respective opening 8,.so

as to engage within the shit 3 of the bolt,

in which event, the nut will be constrained from turning with respect to the bolt.

' .The base or back 6 of the body 5 of the nut presents, a large bearing surface, so as to eliminate washers, and the tail 7 may be readily clasped by a wrench for turning the nut. The presentdevice also eliminatts the employumnt of a jam nut, or othersimilar .devicefor locking the nut in position. Ab

tent-ion is directed to the fact that the openings8 in being dis (1 in parallel planes along the axis of t e nut, instead of being placed-in the same or common plane will serve to strengthen the nut, that is, the present nut will not be weakened as would be occasioned by the arrangement of the openings 8 in 300111111011 plane. ,The particular arrangement of the slot and openings of the bolt and nut, respectively, permit the nut to be locked at various positions, so that a considerable adjustment of the nut is possible.

The present invention may also be embodied in a vehicle axle for locking the wheel hub upon the spindle, the axle or its spindle. being the equivalent of the bolt depicted in the drawing.

As illustrated in Fig. at, the nut l embodies the conical body 5 having the relatively large base or back 6 and the extension or tail 7 which is relatively short, and only has the three transverse or diametricalopenings '8 for the cotter or locking pin. This nut 4 may be locked at the same'angular positionsupon the bolt, asthe nut at above described, although the nut 4J'has not the l'atitude of longitude adjustment, as has the-nut 4. It will therefore be understood that the nuts may becons'tructed in various sizes or proportions, as well as the bolts, 7

according "-to the circumstances.

In combination, a bolt having a red" 7 t da itip provided with a kerf, a nut comprising an enlarged body having a relatively thin tail of hexagonal cross section-and of uniform diameter throughout its length, the nut being tapped from one end to the other and being threaded on the bolt, with the tail disposed over the said reduced't-ip, the tail of the nuit having a spirally arranged series of diametrical openings whereby theaxesof the openings lie in different planes at rightanglesto'the axis of the bolt, and whereby none of the axes-of the openings intersect, the openings being spaced apart longitudinally slightly less than the lengthof the said kerf, and a locking pin insertible through the said openings and kerf.v

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

CHRISTOPHER D. o=ooNNon lVitnesses r J. A. JOHNSTON, E. LOWE, 

